Bear Creek Arsenal 16" 6.5 Grendel Type II M4 Contour 1:8 Carbine 416R Barrel - Straight Fluted - Black Nitride

SKU: B6.5CM41618-MF
MPN: B6.5CM41618(MF)
Manufactured by Bear Creek Arsenal
4 Reviews



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Out of Stock


This high quality Bear Creek Arsenal barrel goes through its entire production life in Sanford, North Carolina at Bear Creek's facilities. Drilling, reaming, rifling, and turning are all accomplished on their CNC machines under ISO-9002 Quality Systems, allowing Bear Creek to put every barrel through a 100% inspection and air gauging process, ensuring every individual barrel is flawless before it leaves their facilities.

This 16", 1:8 twist, M4 contour barrel is machined from 416R stainless steel, heat treated to RC 28-32 hardness, properly stress relieved with a highly corrosion resistant Salt Bath Nitride finish inside and out, and lightened with weight saving straight fluting. Chambered for 6.5 Grendel Type II, BCA expects that it, along with any of their barrels 16" or longer, will hold a 1.000 MOA group at 100 yards when used with appropriate ammo and shooting techniques.

Gas Port: Carbine, 0.070"

Safety Note: Choosing 6.5 Grendel comes with an added complication. There are “Type I” and “Type II” bolt/barrel specifications out there, and you CAN NOT mix and match parts for each of them without risk of damage and/or injury. Type II is by far the most popular configuration, but pay attention to what you are buying! A Type I bolt won’t chamber rounds in a Type II barrel at all. Even worse, a Type II bolt mated to a Type I barrel will create excessive headspace and result in a rifle that is dangerous to fire.


Barrel CoatingMelonite
Barrel ContourM4
Barrel Length16
Barrel Material416R Stainless Steel
BrandBear Creek Arsenal
Caliber Gauge6.5 Grendel Type 2
Feed RampsM4
Gas Seat Diameter.750
Gas System LengthCarbine
Thread Pattern5/8 X 24
Twist Rate1:8

Ratings & Reviews

4 reviews

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Outstanding Finish

by -

Just opened the box. For sub $100 this barrel has an absolutely outstanding finish on the outside. I haven't shot it yet but will update my review soon.
<br>As usual Primary Arms is wicked fast getting their orders mailed out.
<br>Note. Dont ship anything using FedEx SmartPost. It is a combo of FedEx and USPS and will take several extra days and you only save about 2 bucks.

Beautifully finished

by -

Just got this barrel in yesterday. Initial inspection is very favorable. I must say, the finish is OUTSTANDING. The nitride over stainless is a silky, smooth, deep black. The fluting is perfect and it is even dimpled for the gas block set screw.
<br>Obviously, range work needs to be done, but this review is for my initial impression. I dare say it’s the most nicely finished barrel I have. It really is gorgeous.
<br>Bore scoping also yielded a good looking internal finish after cleaning. I hope it shoots as well as it appears to be made.



Finish looks good, more importantly the barrel is accurate. Less than a inch group at 100 yards. I could Consistently hit steel targets out to 700 yards. I am extremely pleased with my purchase. The barrel was shipped dirty, just make sure you clean it before shooting. Rifling looks crisp after cleaning.

Great barrel ,great price !

by -

The fit and finish on this barrel is fantastic ! I'm getting cloverleafs @ 100 yards with hornady 123 ELD black and 1"-2" groups with everything else . I am very happy ,especially when you factor in the price!